Memory management is a key factor when we develop apps. If a program is using a lot of memory, it can make apps run slowly or even cause crashes. To handle this in Swift, you can work with Automatic Reference Counting (ARC) to keep your apps memory usage minimal. This doesn’t mean you can completely forget about the memory in your app, but it does take care of most things for you.
It’s important to note that ARC only works when working with classes. Structs and enums are value types and therefore are stored differently in memory than classes, which are stored and passed by reference.